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9,253 diagnostic guides
Find codes by symptomChoose what you notice to search matching code guides.
Rough idle or shakingVibration while stoppedHard to startLong cranking or no-startEngine stallsCuts out at idle or on the roadHesitates or loses powerSlow response when acceleratingBattery light is onCharging system warningHarsh gear changesDelayed or rough shifting
A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.
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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.
Diagnostic codes
Showing 25–48 of 1016
P00BALow Fuel Pressure - Forced Limited PowerCheck soonFuel System30–120 minutes for initial diagnosisP00BBFuel Injector Insufficient Flow - Forced Limited PowerCheck soonFuel System30–120 minutes for initial diagnosisP00C6Fuel Rail Pressure Too Low - Engine Cranking Bank 1Check soonFuel System30–120 minutes for initial diagnosisP00C8Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/OpenCheck soonFuel System30–120 minutes for initial diagnosisP00C9Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP00CAFuel Pressure Regulator A Solenoid Supply Voltage Control Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP00CBFuel Volume Regulator Solenoid Supply Voltage Control Circuit/OpenCheck soonFuel System30–120 minutes for initial diagnosisP00CCFuel Volume Regulator Solenoid Supply Voltage Control Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP00CDFuel Volume Regulator Solenoid Supply Voltage Control Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP00E5Intake Air Temperature/Fuel Temperature CorrelationCheck soonFuel System30–120 minutes for initial diagnosisP0125Insufficient Coolant Temperature for Closed Loop Fuel ControlCheck soonFuel System30–120 minutes for initial diagnosisP0148Fuel Delivery ErrorCheck soonFuel System30–120 minutes for initial diagnosisP0149Fuel Timing ErrorCheck soonFuel System30–120 minutes for initial diagnosisP015EExcessive Time to Enter Closed Loop Fuel Timing ControlCheck soonFuel System30–120 minutes for initial diagnosisP0168Fuel Temperature Too HighCheck soonFuel System30–120 minutes for initial diagnosisP0169Incorrect Fuel CompositionCheck soonFuel System30–120 minutes for initial diagnosisP016AExcessive Time To Enter Closed Loop Air/Fuel Ratio ControlCheck soonFuel System30–120 minutes for initial diagnosisP016BClosed Loop Air/Fuel Ratio Control At Limit - System Too RichCheck soonFuel System30–120 minutes for initial diagnosisP016CClosed Loop Air/Fuel Ratio Control At Limit - System Too LeanCheck soonFuel System30–120 minutes for initial diagnosisP016DExcessive Time To Enter Closed Loop Fuel Pressure ControlCheck soonFuel System30–120 minutes for initial diagnosisP016EClosed Loop Fuel Pressure Control At Limit - Pressure Too HighCheck soonFuel System30–120 minutes for initial diagnosisP016FClosed Loop Fuel Pressure Control At Limit - Pressure Too LowCheck soonFuel System30–120 minutes for initial diagnosisP0170Fuel Trim Bank 1Check soonFuel System30–120 minutes for initial diagnosisP0173Fuel Trim Bank 2Check soonFuel System30–120 minutes for initial diagnosis